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GRANULAR M IE MITE. 103 2. Miemitc. v Miemite, Klaproth. This species is divided into two subspecies, viz. Gra nular Miemite, and Prismatic Miemite. First Subspecies. Granular Miemite. Magncsian Spar of Thompson.—Miemitc, Klaproth, Beit. b. iii. s, 292.—Chaux carbonatee lente, Miemite, Brong. t. i. p. 230. Kdrniger Bittcrspath, JIaus. s. 128. Id. Leonhard, Tabel. s. 36.—Chaux carbonatee magnesifere lcntieulaire, Ilauy, Tabl. p. 6.—Miemit, Leii.z, b. _ii. s. 716.—Halbgeformtcr Bittcrspath, Oken, b. i. s. 393. External Characters. Its colour is pale asparagus-green, which passes into greenish-white. It occurs massive, and crystallised in flat double three- sided pyramids, in which the lateral planes of the one are set on the lateral edges of the other. The crystals are middle-sized, or small; are either at tached by their lateral edges, or intersect each other ; and their surface is drusy. Internally it is splendent and pearly. The fracture is curved foliated. ' The fragments are rather blunt-cdged. It occurs in distinct concretions, which are large and coarse, and are angulo-granular. It is translucent,. G 1 It